gcp_project_id = attribute(:gcp_project_id, default: '<%= external_attribute(pwd, 'gcp_project_id') -%>', description: 'The GCP project identifier.')
gcp_dns_zone_name = attribute(:gcp_dns_zone_name, default: '<%= external_attribute(pwd, 'gcp_dns_zone_name') -%>', description: 'The DNS name of the DNS zone.')
dns_managed_zone = attribute('dns_managed_zone', default: <%= grab_attributes(pwd)['dns_managed_zone'] -%>)